Folding rigid box



FIG. 1 is a front-left perspective view showing our new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a front view showing our new design in an alternate unfolded configuration; and,

FIG. 9 is a rear view thereof. 

CLAIM The ornamental design for the folding rigid box, as shown and described. 